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Fabio 1beeaab2db Graph: national county↔district↔legislator authority layer

The first edges in the repo. Every US county now links to the districts it
sits in, weighted by area overlap, and every legislator links to the district
they represent — county → district → representative, traversable.

Data (PostGIS, no Atlas dependency — computed directly from geometry):
- data/county_district_edges.jsonl — 16,328 weighted edges. area_weight =
  ST_Area(ST_Intersection(county, district))/ST_Area(county) over ST_MakeValid
  Census TIGER 2024 geometries, overlaps <0.5% dropped. Uses area-intersection,
  NOT centroid-in-polygon, so urban districts that carve through counties
  (e.g. GA CD-5 / Atlanta across Clayton+DeKalb+Fulton) are captured, not
  silently dropped. Per-county weights sum to ~1.0 per district type.

build.py:
- ~6,896 new district nodes: 435 CD (ACS demographics where available; sparse
  for the 8 states missing from acs_cd) + 4,927 state-house + 1,897 state-senate
  (geometry-only). GEOID/number-keyed, stable.
- county index.md gains a `districts:` block (frontmatter) + a ## Districts
  section (body links, so link-integrity checks them).
- legislators + US House members gain `represents:` pointing at their district
  node; edge stored once on the person, inverse left to the view.
- schemas/jurisdiction: classification enum + chamber/districts fields.

Honest gaps (logged, not hidden): ID + NH have no state-house geometry, so
their house districts get nodes (represents resolves) but no county edges;
CD nodes for acs_cd-missing states are demographically sparse.

Deterministic (byte-identical rebuild); validate.py passes 26,617 records,
link-integrity clean (every district/represents link resolves).

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

2026-07-04 22:28:08 -04:00

3.7 KiB

Raw Blame History

type, title, classification, fips, state, demographics, districts, sources, confidence, tags, timestamp

type

title

classification

fips

state

demographics

districts

sources

confidence

tags

timestamp

Jurisdiction

Rankin County, MS

county

28121

population	population_under_18	population_18_64	population_65_plus	median_household_income	poverty_rate	homeownership_rate	unemployment_rate	median_home_value	gini_index	vacancy_rate	race_white	race_black	race_asian	race_native	hispanic	bachelors_plus
158854	35587	96661	26606	79357	9.84	76.82	4.35	237400	0.4205	6.65	113415	33225	2194	965	5279	50539

to	rel	area_weight
us/states/ms/districts/03	in-district	0.9971

to	rel	area_weight
us/states/ms/districts/senate/36	in-district	0.6236

to	rel	area_weight
us/states/ms/districts/senate/20	in-district	0.2288

to	rel	area_weight
us/states/ms/districts/senate/30	in-district	0.0909

to	rel	area_weight
us/states/ms/districts/senate/31	in-district	0.0565

to	rel	area_weight
us/states/ms/districts/house/75	in-district	0.2428

to	rel	area_weight
us/states/ms/districts/house/77	in-district	0.2008

to	rel	area_weight
us/states/ms/districts/house/60	in-district	0.1492

to	rel	area_weight
us/states/ms/districts/house/62	in-district	0.1485

to	rel	area_weight
us/states/ms/districts/house/74	in-district	0.092

to	rel	area_weight
us/states/ms/districts/house/59	in-district	0.0497

to	rel	area_weight
us/states/ms/districts/house/68	in-district	0.046

to	rel	area_weight
us/states/ms/districts/house/79	in-district	0.0365

to	rel	area_weight
us/states/ms/districts/house/61	in-district	0.0343

field	source
demographics	Census ACS 2023

field	source
districts	PostGIS area-intersection over Census TIGER 2024 boundaries

official

jurisdiction

county

2026-07-03

Rankin County, MS

County jurisdiction — 3 officeholders mapped.

Demographics (ACS 2023)

Measure	Value
Population	158854
Under 18	35587
18–64	96661
65+	26606
Median household income	79357
Poverty rate	9.84
Homeownership rate	76.82
Unemployment rate	4.35
Median home value	237400
Gini index	0.4205
Vacancy rate	6.65
White	113415
Black	33225
Asian	2194
Native	965
Hispanic/Latino	5279
Bachelor's or higher	50539

Districts

MS-03 — 100% (congressional)
MS Senate District 36 — 62% (state senate)
MS Senate District 20 — 23% (state senate)
MS Senate District 30 — 9% (state senate)
MS Senate District 31 — 6% (state senate)
MS House District 75 — 24% (state house)
MS House District 77 — 20% (state house)
MS House District 60 — 15% (state house)
MS House District 62 — 15% (state house)
MS House District 74 — 9% (state house)
MS House District 59 — 5% (state house)
MS House District 68 — 5% (state house)
MS House District 79 — 4% (state house)
MS House District 61 — 3% (state house)

Source

demographics: Census ACS 2023
districts: PostGIS area-intersection over Census TIGER 2024 boundaries

3.7 KiB Raw Blame History Unescape Escape

Rankin County, MS

Demographics (ACS 2023)

Districts

Source

3.7 KiB

Raw Blame History